package com.mmall.util;

import java.util.Date;
import java.util.Random;

/**
 * Created by asus on 2018/4/1.
 */
public class PasswordUtil {

    public final static String[] word = {
        "a","b","c","d","e","f","g",
        "h","j","k","m","n","p","q",
        "r","s","t","u","v","w","x",
        "y","z","A", "B", "C", "D", "E",
        "F", "G", "H", "J", "K", "M", "N",
        "P", "Q", "R", "S", "T", "U", "V",
        "W", "X", "Y", "Z"
    };

    public final static String[] num = {
        "2","3","4","5","6","7","8","9","0"
    };

    public static String randomPassword(){
        StringBuilder sb = new StringBuilder();
        Random random = new Random(new Date().getTime());
        int length = random.nextInt(3) + 8;
        boolean flag = false;
        for(int i=0;i<length;i++){
            if(flag){
                sb.append(num[random.nextInt(num.length)]);
            }else{
                sb.append(word[random.nextInt(word.length)]);
            }
            flag = !flag;
        }
        return sb.toString();
    }
}
